Radiation sensitive co(III)complex photoreduction element with image recording layer

Claim 2

In an integral imaging element comprising a support, a radiation-sensitive layer capable of generating amines and an image-recording layer distinct from said radiation-sensitive layer and responsive to said amines to form an image corresponding to imagewise exposure of said radiation-sensitive layer, said layers being disposed on said support; the improvement wherein said radiation-sensitive layer comprises, in chemical association, (a) a reducible, inert cobalt(III) complex free of a sensitizable anion and containing amine ligands, (b) a photoreductant capable of forming in the absence of a cobalt(III) complex, upon exposure to activating radiation longer than 300 nanometers in wavelength, a reducing agent that reduces said complex and releases amines, said photoreductants being selected from the group consisting of disulfides, diazoanthrones, diazophenanthrones, aromatic azides, and carbazides; and (c) an external source of labile hydrogen atoms.

Claim 3

A combination as defined in claim 1, wherein said image recording layer comprises an ammonia-responsive layer.

Claim 4

A combination as defined in claim 1, wherein said ammonia-responsive layer includes ninhydrin, o-phthalaldehyde or a combination thereof.

Claim 5

A combination as defined in claim 1, wherein said image-recording layer incorporates an ammonia-bleachable dye.

Claim 6

A combination as defined in claim 4, wherein said ammonia-bleachable dye is a pyrylium dye.

Claim 7

In an integral imaging element comprising a support, a radiation-sensitive layer capable of generating amines and an image-recording layer distinct from said radiation-sensitive layer and responsive to said amines to form an image corresponding to imagewise exposure to said radiation-sensitive layer, said layers being disposed on said support; the improvement wherein said radiation-sensitive layer comprises, in chemical association, (a) a reducible, inert cobalt(III) complex free of a sensitizable anion and containing amine ligands, (b) a photoreductant capable of forming in the absence of a cobalt(III) complex, upon exposure to activating radiation longer than 300 nanometers in wavelength, a reducing agent that reduces said complex and releases amines, said photoreductant being selected from the group consisting of (1) 2,5-dimethyl-1,4-benzoquinone (2) 2,6-dimethyl-1,4-benzoquinone (3) duroquinone (4) 2-(1-formyl-1-methylethyl)-5-methyl-1,4-benzoquinone (5) 2-methyl-1,4-benzoquinone (6) 2-phenyl-1,4-benzoquinone (7) 2,5-dimethyl-6-(1-formylethyl)-1,4-benzoquinone (8) 2-(2-cyclohexanonyl)-3,6-dimethyl-1,4-benzoquinone (9) 1,4-naphthoquinone (10) 2-methyl-1,4-naphthoquinone (11) 2,3-dimethyl-1,4-naphthoquinone (12) 2,3-dichloro-1,4-naphthoquinone (13) 2-thiomethyl-1,4-naphthoquinone (14) 2-(1-formyl-2-propyl)-1,4-naphthoquinone (15) 2-(2-benzoylethyl)-1,4-naphthoquinone (16) 9,10-phenanthrenequinone (17) 2-ethylamino-3-piperidino-1,4-naphthoquinone (18) 2-ethoxymethyl-1,4-naphthoquinone (19) 2-phenoxymethyl-1,4-naphthoquinone (20) 5,8-dihydro-1,4-naphthoquinone (21) 5,8-dihydro-2,5,8-trimethyl-1,4-naphthoquinone (22) 2,5-bis(dimethylamino)-1,4-benzoquinone (23) 2,5-dimethyl-3,6-bis(dimethylamino)-1,4-benzoquinone (24) 2,5-dimethyl-3,6-bispyrrolidino-1,4-benzoquinone (25) 2-ethoxy-5-methyl-1,4-benzoquinone (26) 2,6-dimethoxy-1,4-benzoquinone (27) 2,5-dimethoxy-1,4-benzoquinone (28) 2,6-diethoxy-1,4-benzoquinone (29) 2,5-diethoxy-1,4-benzoquinone (30) 2,5-bis(2-methoxyethoxy)-1,4-benzoquinone (31) 2,5-bis(β-phenoxyethoxy)-1,4-benzoquinone (32) 2,5-diphenethoxy-1,4-benzoquinone (33) 2,5-di-n-propoxy-1,4-benzoquinone (34) 2,5-di-isopropoxy-1,4-benzoquinone (35) 2,5-di-n-butoxy-1,4-benzoquinone (36) 2,6-di-sec-butoxy-1,4-benzoquinone (37) 1,1'-bis(5-methyl-1,4-benzoquinone-2-yl)-diethyl ether (38) 2-methyl-5-morpholinomethyl-1,4-benzoquinone (39) 2,3,5-trimethyl-6-morpholinomethyl-1,4-benzoquinone (40) 2,5-bis(morpholinomethyl)-1,4-benzoquinone (41) 2-hydroxymethyl-3,5,6-trimethyl-1,4-benzoquinone (42) 2-(1-hydroxyethyl)-5-methyl-1,4-benzoquinone (43) 2-(1-hydroxy-n-propyl)-5-methyl-1,4-benzoquinone (44) 2-(1-hydroxy-2-methyl-n-propyl)-5-methyl-1,4-benzoquinone (45) 2-(1,1-dimethyl-2-hydroxyethyl)-5-methyl-1,4-benzoquinone (46) 2-(1-acetoxyethyl)-5-methyl-1,4-benzoquinone (47) 2-(1-methoxyethyl)-5-methyl-1,4-benzoquinone (48) 2-(2-hydroxyethyl)-3,5,6-trimethyl-1,4-benzoquinone (49) 2-ethoxy-5-phenyl-1,4-benzoquinone (50) 2-i-propoxy-5-phenyl-1,4-benzoquinone (51) 1,4-dihydro-1,4-dimethyl-9,10-anthraquinone (52) 2-dimethylamino-1,4-naphthoquinone (53) 2-methoxy-1,4-naphthoquinone (54) 2-benzyloxy-1,4-naphthoquinone (55) 2-methoxy-3-chloro-1,4-naphthoquinone (56) 2,3-dimethoxy-1,4-naphthoquinone (57) 2,3-diethoxy-1,4-naphthoquinone (58) 2-ethoxy-1,4-naphthoquinone (59) 2-phenethoxy-1,4-naphthoquinone (60) 2-(2-methoxyethoxy)-1,4-naphthoquinone (61) 2-(2-ethoxyethoxy)-1,4-naphthoquinone (62) 2-(2-phenoxy)ethoxy-1,4-naphthoquinone (63) 2-ethoxy-5-methoxy-1,4-naphthoquinone (64) 2-ethoxy-6-methoxy-1,4-naphthoquinone (65) 2-ethoxy-7-methoxy-1,4-naphthoquinone (66) 2-n-propoxy-1,4-naphthoquinone (67) 2-(3-hydroxypropoxy)-1,4-naphthoquinone (68) 2-isopropoxy-1,4-naphthoquinone (69) 7-methoxy-2-isopropoxy-1,4-naphthoquinone (70) 2-n-butoxy-1,4-naphthoquinone (71) 2-sec-butoxy-1,4-naphthoquinone (72) 2-n-pentoxy-1,4-naphthoquinone (73) 2-n-hexoxy-1,4-naphthoquinone (74) 2-n-heptoxy-1,4-naphthoquinone (75) 2-acetoxymethyl-3-methyl-1,4-naphthoquinone (76) 2-methoxymethyl-3-methyl-1,4-naphthoquinone (77) 2-(β-acetoxyethyl)-1,4-naphthoquinone (78) 2-N,N-bis(cyanomethyl)ainomethyl-3-methyl-1,4-naphthoquinone (79) 2-methyl-3-morpholinomethyl-1,4-naphthoquinone (80) 2-hydroxymethyl-1,4-naphthoquinone (81) 2-hydroxymethyl-3-methyl-1,4-naphthoquinone (82) 2-(1-hydroxyethyl)-1,4-naphthoquinone (83) 2-(2-hydroxyethyl)-1,4-naphthoquinone (84) 2-(1,1-dimethyl-2-hydroxyethyl)-1,4-naphthoquinone (85) 2-bromo-3-isopropoxy-1,4-naphthoquinone (86) 2-ethoxy-3-methyl-1,4-naphthoquinone (87) 2-chloro-3-piperidino-1,4-naphthoquinone (88) 2-morpholino-1,4-naphthoquinone (89) 2,3-dipiperidino-1,4-naphthoquinone (90) 2-dibenzylamino-3-chloro-1,4-naphthoquinone (91) 2-methyloxycarbonylmethyl-1,4-naphthoquinone (92) 2-(N-ethyl-N-benzylamino)-3-chloro-1,4-naphthoquinone (93) 2-morpholino-3-chloro-1,4-naphthoquinone (94) 2-pyrrolidino-3-chloro-1,4-naphthoquinone (95) 2-diethylamino-3-chloro-1,4-naphthoquinone (96) 2-diethylamino-1,4-naphthoquinone (97) 2-piperidino-1,4-naphthoquinone (98) 2-pyrrolidino-1,4-naphthoquinone (99) 2-(2-hexyloxy)-1,4-naphthoquinone (100) 2-neo-pentyloxy-1,4-naphthoquinone (101) 2-(2-n-pentyloxy)-1,4-naphthoquinone (102) 2-(3-methyl-n-butoxy)-1,4-naphthoquinone (103) 2-(6-hydroxy-n-hexoxy)-1,4-naphthoquinone (104) 2-ethoxy-3-chloro-1,4-naphthoquinone (105) 2-di(phenyl)methoxy-1,4-naphthoquinone (106) 2-(2-hydroxyethyl)-3-chloro-1,4-naphthoquinone (107) 2-methyl-3-(1-hydroxymethyl)ethyl-1,4-naphthoquinone (108) 2-azetidino-3-chloro-1,4-naphthoquinone (109) 2-(2-hydroxyethyl)-3-bromo-1,4-naphthoquinone and (110) 2,3-dimorpholino-1,4-naphthoquinone; and (c) an internal or an external source of labile hydrogen atoms.

Claim 8

In an integral imaging element comprising a support, a radiation-sensitive layer capable of generating amines and an image-recording layer distinct from said radiation-sensitive layer and responsive to said amines to form an image corresponding to imagewise exposure to said radiation-sensitive layer, said layers being disposed on said support; the improvement wherein said radiation-sensitive layer comprises, in chemical association, (a) a reducible, inert cobalt(III) complex free of a sensitizable anion and containing amine ligands, (b) a photoreductant capable of forming in the absence of a cobalt(III) complex, upon exposure to activating radiation longer than 300 nanometers in wavelength, a reducing agent that reduces said complex and releases amines, said photoreductant being selected from the group consisting of (1) 2,5-dimethyl-1,4-benzoquinone (2) 2,6-dimethyl-1,4-benzoquinone (3) duroquinone (4) 2-(1-formyl-1-methylethyl)-5-methyl-1,4-benzoquinone (5) 2-methyl-1,4-benzoquinone (6) 2-phenyl-1,4-benzoquinone (7) 2,5-dimethyl-6-(1-formylethyl)-1,4-benzoquinone (8) 2-(2-cyclohexanonyl)-3,6-dimethyl-1,4-benzoquinone (9) 1,4-naphthoquinone (10) 2-methyl-1,4-naphthoquinone (11) 2,3-dimethyl-1,4-naphthoquinone (12) 2,3-dichloro-1,4-naphthoquinone (13) 2-thiomethyl-1,4-naphthoquinone (14) 2-(1-formyl-2-propyl)-1,4-naphthoquinone (15) 2-(2-benzoylethyl)-1,4-naphthoquinone (16) 9,10-phenanthrenequinone (17) 2-ethylamino-3-piperidino-1,4-naphthoquinone (18) 2-ethoxymethyl-1,4-naphthoquinone (19) 2-phenoxymethyl-1,4-naphthoquinone (20) 5,8-dihydro-1,4-naphthoquinone (21) 5,8-dihydro-2,5,8-trimethyl-1,4-naphthoquinone (22) 2,5-bis(dimethylamino)-1,4-benzoquinone (23) 2,5-dimethyl-3,6-bis(dimethylamino)-1,4-benzoquinone (24) 2,5-dimethyl-3,6-bispyrrolidino-1,4-benzoquinone (25) 2-ethoxy-5-methyl-1,4-benzoquinone (26) 2,6-dimethoxy-1,4-benzoquinone (27) 2,5-dimethoxy-1,4-benzoquinone (28) 2,6-diethoxy-1,4-benzoquinone (29) 2,5-diethoxy-1,4-benzoquinone (30) 2,5-bis(2-methoxyethoxy)-1,4-benzoquinone (31) 2,5-bis(β-phenoxyethoxy)-1,4-benzoquinone (32) 2,5-diphenethoxy-1,4-benzoquinone (33) 2,5-di-n-propoxy-1,4-benzoquinone (34) 2,5-di-isopropoxy-1,4-benzoquinone (35) 2,5-di-n-butoxy-1,4-benzoquinone (36) 2,6-di-sec-butoxy-1,4-benzoquinone (37) 1,1'-bis(5-methyl-1,4-benzoquinone-2-yl)-diethyl ether (38) 2-methyl-5-morpholinomethyl-1,4-benzoquinone (39) 2,3,5-trimethyl-6-morpholinomethyl-1,4-benzoquinone (40) 2,5-bis(morpholinomethyl)-1,4-benzoquinone (41) 2-hydroxymethyl-3,5,6-trimethyl-1,4-benzoquinone (42) 2-(1-hydroxyethyl)-5-methyl-1,4-benzoquinone (43) 2-(1-hydroxy-n-propyl)-5-methyl-1,4-benzoquinone (44) 2-(1-hydroxy-2-methyl-n-propyl)-5-methyl-1,4-benzoquinone (45) 2-(1,1-dimethyl-2-hydroxyethyl)-5-methyl-1,4-benzoquinone (46) 2-(1-acetoxyethyl)-5-methyl-1,4-benzoquinone (47) 2-(1-methoxyethyl)-5-methyl-1,4-benzoquinone (48) 2-(2-hydroxyethyl)-3,5,6-trimethyl-1,4-benzoquinone (49) 2-ethoxy-5-phenyl-1,4-benzoquinone (50) 2-i-propoxy-5-phenyl-1,4-benzoquinone (51) 1,4-dihydro-1,4-dimethyl-9,10-anthraquinone (52) 2-dimethylamino-1,4-naphthoquinone (53) 2-methoxy-1,4-naphthoquinone (54) 2-benzyloxy-1,4-naphthoquinone (55) 2-methoxy-3-chloro-1,4-naphthoquinone (56) 2,3-dimethoxy-1,4-naphthoquinone (57) 2,3-diethoxy-1,4-naphthoquinone (58) 2-ethoxy-1,4-naphthoquinone (59) 2-phenethoxy-1,4-naphthoquinone (60) 2-(2-methoxyethoxy)-1,4-naphthoquinone (61) 2-(2-ethoxyethoxy)-1,4-naphthoquinone (62) 2-(2-phenoxy)ethoxy-1,4-naphthoquinone (63) 2-ethoxy-5-methoxy-1,4-naphthoquinone (64) 2-ethoxy-6-methoxy-1,4-naphthoquinone (65) 2-ethoxy-7-methoxy-1,4-naphthoquinone (66) 2-n-propoxy-1,4-naphthoquinone (67) 2-(3-hydroxypropoxy)-1,4-naphthoquinone (68) 2-isopropoxy-1,4-naphthoquinone (69) 7-methoxy-2-isopropoxy-1,4-naphthoquinone (70) 2-n-butoxy-1,4-naphthoquinone (71) 2-sec-butoxy-1,4-naphthoquinone (72) 2-n-pentoxy-1,4-naphthoquinone (73) 2-n-hexoxy-1,4-naphthoquinone (74) 2-n-heptoxy-1,4-naphthoquinone (75) 2-acetoxymethyl-3-methyl-1,4-naphthoquinone (76) 2-methoxymethyl-3-methyl-1,4-naphthoquinone (77) 2-(β-acetoxyethyl)-1,4-naphthoquinone (78) 2-N,N-bis(cyanomethyl)ainomethyl-3-methyl-1,4-naphthoquinone (79) 2-methyl-3-morpholinomethyl-1,4-naphthoquinone (80) 2-hydroxymethyl-1,4-naphthoquinone (81) 2-hydroxymethyl-3-methyl-1,4-naphthoquinone (82) 2-(1-hydroxyethyl)-1,4-naphthoquinone (83) 2-(2-hydroxyethyl)-1,4-naphthoquinone (84) 2-(1,1-dimethyl-2-hydroxyethyl)-1,4-naphthoquinone (85) 2-bromo-3-isopropoxy-1,4-naphthoquinone (86) 2-ethoxy-3-methyl-1,4-naphthoquinone (87) 2-chloro-3-piperidino-1,4-naphthoquinone (88) 2-morpholino-1,4-naphthoquinone (89) 2,3-dipiperidino-1,4-naphthoquinone (90) 2-dibenzylamino-3-chloro-1,4-naphthoquinone (91) 2-methyloxycarbonylmethyl-1,4-naphthoquinone (92) 2-(N-ethyl-N-benzylamino)-3-chloro-1,4-naphthoquinone (93) 2-morpholino-3-chloro-1,4-naphthoquinone (94) 2-pyrrolidino-3-chloro-1,4-naphthoquinone (95) 2-diethylamino-3-chloro-1,4-naphthoquinone (96) 2-diethylamino-1,4-naphthoquinone (97) 2-piperidino-1,4-naphthoquinone (98) 2-pyrrolidino-1,4-naphthoquinone (99) 2-(2-hexyloxy)-1,4-naphthoquinone (100) 2-neo-pentyloxy-1,4-naphthoquinone (101) 2-(2-n-pentyloxy)-1,4-naphthoquinone (102) 2-(3-methyl-n-butoxy)-1,4-naphthoquinone (103) 2-(6-hydroxy-n-hexoxy)-1,4-naphthoquinone (104) 2-ethoxy-3-chloro-1,4-naphthoquinone (105) 2-di(phenyl)methoxy-1,4-naphthoquinone (106) 2-(2-hydroxyethyl)-3-chloro-1,4-naphthoquinone (107) 2-methyl-3-(1-hydroxymethyl)ethyl-1,4-naphthoquinone (108) 2-azetidino-3-chloro-1,4-naphthoquinone (109) 2-(2-hydroxyethyl)-3-bromo-1,4-naphthoquinone and (110) 2,3-dimorpholino-1,4-naphthoquinone; and (c) an internal or an external source of labile hydrogen atoms.